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Green Energy


1. 

Which of the following is the ultimate source of energy for us?

Answer : C. Solar

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2. 

In which of the following kinetic energy is converted into electrical energy?

Answer : D. All of these

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3. 

A body of mass 1kg is attracted by the earth with a force which is equal to

Answer : A. 9.8 N

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4. 

Which of the following is a disadvantage of renewable energy?

Answer : D. Unreliable supply

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5. 

Which of the following is normally used in solar cookers for trapping solar energy?

Answer : C. Mirrors

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6. 

A Solar cell is an electrical device that converts the energy of light directly into electricity by the

Answer : B. Photovoltaic effect

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